Electrodeposition of nickel-tungsten amorphous and microcrystall

Details Electrodeposition of nickel-tungsten amorphous and microcrystall Electrodeposition of nickel-tungsten amorphous and microcrystall

1993-06-30

1995-02-14

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Product produced by electrolysis involving electrolytic...

205227, 205259, C25D 356, C25D 550

Patent

active

053892267

ABSTRACT:
A nickel tungsten-containing coating is electrodeposited onto a substrate from an electrodeposition bath having in solution from about 0.034 to about 0.047 moles per liter of nickel, from about 0.15 to about 0.28 moles per liter of tungsten, from about 0.13 to about 0.43 moles per liter of hydroxycarboxylic acid, and 0 or from about 0.077 to about 0.15 moles per liter of boron. The bath has a pH of from about 6 to about 9, and the electrodeposition is preferably accomplished at a temperature of from about 100.degree. F. to about 140.degree. F.

REFERENCES:
patent: 2160321 (1939-05-01), Armstrong et al.
patent: 4019910 (1977-03-01), Mallory, Jr.
patent: 4529668 (1985-07-01), Croopnick et al.

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